Press for molding artificial-stone blocks.



No. 768,345. PATENTED AUG. 23, 1904. G. H. RADEMAGHER & J. O. F. BOLL.PRESS FOR MOLDING ARTIFICIAL STONE BLOCKS.

APPLICATION FILED MAY 26. 1904.

NO MODEL.

UNITED STATES- Patented August 23, 1904.

PATENT OFFICE.

GEORG HEINRICH RADEMAOHER. OHAN-N CHRISTIAN FRIEDRICH BOLL, OFQUIOKBORN, GERMANY; SAID BOLL ASSIGNOR TO LOREN S CHRISTIAN FILSKOV, OFMOGELTONDERN, GERMANY.

. PRESS FOR MOL DlNG ARTIFICIAL-STONE BLOCKS.

SPECIFICATION forming part of Letters Patent No. 768,345, dated August23, 1904.

Application filed May 26, 1904.

DEMACHER and J OHANN OHRIsTIANFRIEDRIorI faces of the stone blocks beingdamaged. As

BOLL, subjects of the Emperor of Germany, residing at Quickborn,Holstein, Germany, have invented certain new and useful Improvements inPresses for Molding Artificial-Stone Blocks, of which the following is aspecification.

This invention relates to improvements in presses for moldingartificial-stone blocks.

The object of the invention is to provide a simple, reliable, andeffective press for the formation of artificial-stone blocks forbuilding and other purposes and in whichwith one stamping operation thesimultaneous production of several blocks is effected. Devicesof thisnature heretofore known have presented disadvantages on account of thefact that the sliding plates which divide the mold-box into compartmentshad either to be moved out and in laterally or vertically. In the casewhere said plates were horizontally slidable considerable time wasrequired for introducing and withdrawing the same, and there was therisk, especially when large plates were employed, of said plates beingdistorted and the smooth distinguished from such prior constructionsunder the present invention the partitionplates are pivoted so as to beswung through a circular path, whereby their operation requires lesstime, and better results are obtained, inasmuch as sharp edges areproduced on the section-planes of the blocks.

The invention is illustrated in the accompanying drawings, in which. s

Figure 1 is a front elevation showing the partition-plates and cover inraised position. Fig. 2 is an end elevation partlyin section. Fig. 3 isa plan with the partition-plates and cover in lowered position. Fig. 4is an end elevation thereof. Fig. 5 is a section on the line A B ofFigs. 3 and 4.

As shown in the drawings, the improved press comprises the box 0, behindthe rear end of which is mounted in brackets the longitudinal axis orpivot-pin a, on which axis a are Serial No. 209,892. (No model.)

pivoted a number of partition-plates Z), in the present case three, bymeans of hinges it, said partition-plates I) being so'arranged that whenturned down to horizontal positiomas shown in Fig. 4, the edges thereofcontact with the base of the box 0 or with the'boardf, located withinthe same, and their forward ends project beyond the box through theslots d on the front edge of the box. On the same axisais pivoted acover 6, connected by hinges g, the cover being made in separatesections disposed at sufficient distance apart for the blades to passthrough the interstices between the sections. The said cover is providedwith a fillet all round, which on closing down the cover bears againstthe edge of the box 0. On the floor of the box is a board f, which maybe operated by the usual treadle-g'ear for raising the prepared stones.

The plates 6 may be separately raised or they may besimultaneouslyraised by attach ing a hook Z to each of said plates andproviding a common shaft engaging said hooks Z to raise said plates d.Similarly the sections of the cover 6 may be simultaneously operated bymeans of a rod 70, passing through orifices in arms m, secured to thesections 0, as shown.

What we claim, and desire to secure by Let ters Patent of the UnitedStates, is

1. The herein-described press for molding artificial-stone blocks,comprising, in combination, a box, a cover formed in sections separatedby longitudinal interstices, and hinged partition-plates turnableindependently of said cover and adapted to pass through saidinterstices, as-and for the purpose set forth.

2. The improved press for molding artificial-stone blocks, comprising,in combination, a box, a cover, partition-plates adapted to pass throughslots in said cover, and means whereby said cover and said plates arehinged to said box so as to be independently rotatable, substantially asdescribed.

3. The herein-described press for molding artificial-stone blocks,comprising, in combination, a box, a hinged cover formed in sectionsseparated by longitudinal interstices, removable means connecting saidsections enabling them to be swung simultaneously, hingedpartition-plates adapted to pass through said interstices, and removablemeans connecting said partition-plates enabling them to be swungsimultaneously but independently of said cover, as and for the purposeset forth.

4. The improved press for molding artificial-stone blocks, comprising,in combination, a box having its front end slotted as shown, atransverse pivot beyond the rear end of said box, means for supportingsaid pivot to said box, a cover formed in sections separated bylongitudinal interstices, hinges connecting said cover to said pivot,partition-plates adapted to pass through said interstices and to enterthe slots on the front end of said box, and hinges connecting saidpartition-plates to said pivot, substantially as described.

5. The improved press for molding artificial-stone blocks, comprising,in combination,

the box 0 having its front edge slotted as shown, the pivot (0 beyondthe rear end of said box, the cover a formed in sections separated bylongitudinal interstices, hinges a con necting said sections to saidpivot, partitionplates 6 adapted to pass through said interstices,hinges l1, connecting said plates to said pivot, hooks Z attached tosaid plates, arms m,

GEORG HEINRICH ltAlll llllAClllllt. JOHANN CllltlSllAN FltllllHtlCllBUM.

Witnesses BRUNO Benson, GUSTAV WILNnR.

